import java.util.Arrays;

/**
 * @author :Colin
 * @version 创建时间: 2021/6/30 9:56
 */
public class exericise {
    public static void main(String[] args) {
        String a="a";
        char b=97;
        System.out.println(a.getBytes());
        System.out.println(Arrays.toString(a.getBytes()));
        System.out.println(b);
    }


}
